Introduction: Cable guardrails belong to flexible structures. When a vehicle collides, the cables work within the elastic range and can be reused, making them easy to repair. Comparison of column spacing

Flexible and less affected by uneven settlement. The use of cable guardrails on scenic roads is more aesthetically pleasing. In snow covered areas, cable guardrails have slightly fewer obstacles to snow sweeping< Br/>
However, the construction of cable guardrails is complex, and it is difficult to repair the damaged end columns, making it unsuitable for use on small radius curved road sections; At the same time, its line of sight guidance is poor, and the frame

Setting the length to be short is not economical.
(2) Middle end column. When the installation length of the cable guardrail exceeds 200-300m, a middle end structure should be used. The middle end structure of the roadside cable guardrail

Construct into a triangle. The end column is composed of a triangular bracket, a base plate, and a concrete foundation, and the structure and size of the end column< Br/>
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Classification:

Cable guardrails are divided into two types: immersion type B (ordinary type) and immersion type A (reinforced type); Hot dip galvanized B-type (regular type), hot-dip galvanized A-type (reinforced type). A-level adopts

6 cables, 5 cables are used for Class B, and the initial tension of Class A and Class B cables is 201d~. The cables are made of 3x7 with high strength and excellent corrosion resistance
Galvanized/right twisted construction. Features: Compared with traditional guardrails, it has good flexibility, strong impact resistance, good collision resistance, and greater resistance to snow and wind loads
Point. In addition, cable guardrails with better permeability have a wider field of view, which will be more conducive to tourists appreciating natural landscapes< Br/>
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Installation:

The end structure is installed at the starting and ending positions of the cable guardrail. In order to maintain the initial tension of the cable and simplify the tensioning equipment during installation and construction, a

The cable levelness is determined to prevent deflection and facilitate maintenance. Generally, the installation length of the cable is set at 200-300m, which means that every

The length of each cable shall not exceed 300m. The end structure can be either buried or assembled. The buried end structure is integrated with the concrete foundation,

The burial depth of the end columns varies from 400-500nma according to different categories. The diagonal column of the triangular bracket forms a 45 degree angle with the ground; Corner, weld a piece at the bottom

Steel plate, on the one hand, can make the triangular bracket form a stable frame, and on the other hand, the bottom steel plate can greatly increase the adhesion with the foundation concrete

Jieli is also easy to control the position of elevation through steel plates. The prefabricated end structure is integrated with the concrete foundation through embedded parts, and the end structure is embedded

Items vary due to their different structures and categories. A-grade triangular bracket with 6 fixed 8-length 600nm, pre embedded anchor bolts, 6 anchor bolts and steel plate

Welding angle steel into a frame can not only position the anchor bolts, but also greatly enhance the bonding strength with concrete< Br/>
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Construction:

End column. The end column of the roadside cable guardrail is the main structure that bears the tension of the cable and the collision force of uncontrollable vehicles, and is supported by a triangular bracket

Composed of bottom plate and concrete foundation< Br/>
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Principle: Cable guardrail is the main representative form of flexible guardrail, which is a structure composed of several cables with initial tension applied and fixed on columns
It mainly relies on the tensile stress of the cables to resist vehicle collisions and absorb collision energy. Cable guardrails are flexible structures, and when a vehicle collides, the cables are within the elastic range
Internal work, reusable, and easy to repair. The spacing between columns is relatively flexible and less affected by uneven settlement. The scenic area highway adopts cable protection

The column is more aesthetically pleasing. In snow covered areas, cable guardrails have slightly fewer obstacles to snow sweeping. However, the construction of cable guardrails is complex, and it is difficult to repair the damaged end columns, which is not suitable
Used on small radius curve sections
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